The 2017 Chrysler 300S is generally solid, but its most frequent problems involve the transmission, electrical system, and some engine/brake issues that owners report with higher mileage.
This article surveys these concerns, explains how they typically present, and offers practical advice for owners or prospective buyers, including how to verify recalls and service histories.
Common mechanical and transmission problems
Here are the issues most frequently cited by owners and supported by service data for the 2017 300S.
- Transmission behavior: hard or delayed shifts, shuddering, or rough downshifts in certain driving conditions, which may be addressable with dealer software updates or, in rare cases, component service.
- Engine performance and drivability: symptoms such as rough idle, intermittent misfires, hesitation on acceleration, or reduced power, often traced to ignition components, coil packs, or related fuel/air delivery systems.
- Electrical and infotainment glitches: issues with the Uconnect system rebooting, touchscreen unresponsiveness, Bluetooth disconnects, or intermittent instrument cluster quirks.
- Steering and braking concerns: warnings or intermittent loss of electric power steering assist, combined with occasional ABS/ESC light activity or brake pedal feel changes.
- Suspension and ride quality: clunking or rattle noises in the front suspension, worn control arms or related components, and tire wear that affects handling feel.
- Fuel economy and emissions behavior: some owners report lower-than-expected mileage or drivability alerts, often related to overall wear and maintenance status.
In practice, many of these issues are more likely to appear as mileage increases or after extended use. Some cases are mitigated by updates or routine maintenance, while others require component repair or replacement.
Recalls and service bulletins
recalls and service campaigns can address widespread issues or specific VIN ranges. It’s important to verify your vehicle’s status with the VIN and dealer records.
- Transmission software updates or related calibration changes to improve shifting behavior and engagement
- Airbag inflator recalls or related safety campaigns that affected several 2017-era FCA vehicles
- Electrical control module and wiring updates to address intermittent steering, infotainment, or instrument cluster problems
- Brake system or ABS-related service bulletins that could affect brake feel or warning lights
For owners, the key step is to contact a Chrysler dealership or use the official NHTSA recall lookup with the vehicle’s VIN to confirm open campaigns and required service.
Ownership tips and maintenance recommendations
Suggestions to reduce risk and keep the 2017 300S running smoothly.
- Keep current with recommended maintenance, especially transmission service and software updates when advised by a dealer.
- Monitor the infotainment system and address persistent glitches early to prevent longer-term electronic faults.
- Inspect ignition components (coils, plugs) and the fuel/air delivery system if you notice rough running or misfires.
- Watch for warning lights related to steering, brakes, or the airbags; have a professional diagnose any persistent warnings promptly.
- Perform a thorough pre-purchase inspection if buying used, including a transmission and electrical system evaluation, and check for any outstanding recalls.
Following these practices can help minimize surprises and maximize the 300S’s comfort and performance, even as the model ages.
Summary
The 2017 Chrysler 300S can present several recurring issues, with transmission behavior, electrical/infotainment glitches, and engine/braking concerns being the most commonly reported. Regular maintenance, timely software updates, and routine recall checks are essential to staying ahead of potential faults. If you’re considering a used 2017 300S, a thorough pre-purchase inspection and VIN-based recall verification are strongly recommended to ensure you’re aware of any outstanding issues.